Evaluación de la co-digestión anaerobia de lodos de aguas residuales municipales con residuos de alimentos

Guerrero, Ileana Consuelo Julio; Jaramillo, Carlos Alberto Peláez; Perez, Francisco José Molina

doi:10.18273/revion.v29n1-2016005

Cited by 10 publications

(4 citation statements)

References 20 publications

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“…In addition, BMP assays are commonly expressed in different units, which makes comparison between studies difficult when making a bibliographic review, as shown in Table 2. There are factors that could affect the BMP values obtained between this trial and those reported in the literature [64]; for example, in our study, the agitation was constant, and in a similar study conducted by Julio [28], the agitation was manual. This condition can affect mass transfer between substrates and microorganisms [65].…”

Section: Digestivity Assays and Biochemical Methane Potentialmentioning

confidence: 53%

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Optimizing Anaerobic Digestion at Ambient Temperatures: Energy Efficiency and Cost Reduction Potential in Panama

Deago,

Ramírez,

Espino

et al. 2023

Water

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Anaerobic digestion (AD) is usually carried out at mesophilic temperatures (25–45 °C) in most countries, whether in temperate or tropical climates, which results in the need for heat injection and consequently increases costs. In this regard, batch AD tests were conducted at 25, 28, and 35 °C, with 25 °C being the lowest ambient temperature in Panama, using thickened secondary sludge (TSS) and digested secondary sludge (DSS) from the Juan Diaz wastewater treatment plant (WWTP) to determine the Biochemical Methane Potential (BMP). The AD study generated maximum mean BMP values of 163 mL CH4/g VS for DSS and 289.72 mL CH4/g VS for codigestion at 25 °C. The BMP value of DSS at 25 °C showed that it can still be used for energy generation, using the lowest ambient temperature recorded in Panama City. Likewise, trials at 25 °C showed a 43.48% reduction in the electrical energy produced compared to that generated at 38 °C in WWTP. This results in a reduction in energy, as the use of heat could be omitted and the energy costs required for the process are covered. In this regard, the novelty of this work lies in its investigation of anaerobic digestion at ambient temperatures, which represents a departure from conventional practices that typically require higher temperatures. By exploring the feasibility of anaerobic digestion within the temperature range of 25–35 °C, this study offers a novel approach to optimizing energy efficiency and reducing costs associated with elevated temperatures.

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Section: Digestivity Assays and Biochemical Methane Potentialmentioning

confidence: 53%

“…The anaerobic biomass present in the digested sludge makes it suitable for use as inoculum [25]. There are several studies where it has been used as an inoculum in the co-digestion of substrates such as grease traps [26], wood chips [27], and organic waste [28].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Anaerobic Digestion at Ambient Temperatures: Energy Efficiency and Cost Reduction Potential in Panama

Deago,

Ramírez,

Espino

et al. 2023

Water

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“…Respecto a los lodos de las plantas de tratamiento de aguas residuales (PTAR), en el proceso de compostaje se hicieron mono digestiones y codigestiones anaerobias; es decir, diversas mezclas de lodos de aguas residuales con residuos alimenticios para generar biogás en reactores por lotes en condiciones mesofílicas, dando como resultado que la codigestión genera la más alta producción de metano, dado que los residuos de alimentos proveen carbono orgánico a los lodos, optimizando la producción de biogás y por ende mejorando la relación C/N (Julio, Peláez & Molina, 2016). Además, trabajaron con un reactor para producir biogás a partir de lodo fresco del tratamiento de aguas residuales en condiciones mesofílicas, el digestor fue operado a diferentes cargas de alimentación durante 20 días, de este estudio es evidente que si el digestor es operado con mayores cargas de biomasa, menor será el tiempo de retención hidráulica (TRH) y el sistema se volverá más estable.…”

Section: Sosa Et Al (2016)unclassified

Valorización de propiedades fisicoquímicas de residuos sólidos orgánicos alimentarios para la elaboración de compostaje

Pérez Pérez,

Linares Nima,

Pérez Huamán

2023

Rev. Inst. investig. Fac. minas metal cienc. geogr

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La gestión de los residuos sólidos orgánicos representa un desafío a escala global, donde están experimentando un crecimiento proporcional al demográfico. Esta preocupación se debe a que se ha duplicado la generación de residuos sólidos orgánicos ascendiendo en aproximadamente a más de un billón de toneladas por año. En los esfuerzos por minimizar la generación de residuos o reducir su volumen que va hacia los rellenos sanitarios, se propone la valorización de residuos orgánicos, como estrategia de economía circular para la producción de compostaje. El presente estudio es una revisión bibliográfica sobre el compostaje, que tiene como objetivo evaluar las características de los parámetros físicos y químicos del proceso de elaboración del compostaje de los residuos sólidos orgánicos, obteniendo como resultados diversos parámetros que influyen en dicho proceso tales como el pH, el porcentaje de humedad, la relación C/N, la temperatura y el tamaño de partícula. Concluyendo según la revisión, que el compost hecho de residuos alimentarios presenta mayor cantidad de nutrientes a diferencia de los residuos agrícolas y forestales.

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“…Currently, it is common to incorporate waste sludge in agricultural soils, as it reduces the addition of commercial fertilizers, improves their fertility, increases water retention capacity and reduces soil erosion [25]. Sludge acts as a soil conditioner to facilitate the transfer or provide nutrients, increase water retention and improve soil fitness for cultivation [26]. Sludge also serves as a partial substitute for expensive chemical fertilizers [4].…”

Section: Introductionmentioning

confidence: 99%

Agricultural Use of Biosolids Generated in Wastewater Treatment of a Food Industry

et al. 2020

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Biosolids generated as waste from a Wastewater Treatment Plant (WTP) are a pollution problem by the provision of large volumes in landfills and the waste of their potential as an agricultural input. The research conducted trials to analyze the agricultural use of biosolids in a food company's WTP, their effects on the germination and development of the vegetal plant species Coriandrum sativum were assessed through trials that mixed different amounts of biosolids, land soil and commercial fertilizer, and took into account: planting site characteristics, biosolid and Coriandrum sativum. A random block design was made to compare treatments understudy and resulted in the combination of 50% biosolids with 50% land soil was the best test by germination, height, mass and length of the roots of the plant studied. In the evaluation of results, the behavior of dependent variables was analyzed: germination, height, mass and length with respect to the four test types with their respective repetitions using ANOVA and Fisher's significant minimum difference (LSD) to determine the effect the biosolid had on the plant and to know the optimal dose for its development. The germination rate (GR) was also determined in the trials, and 98.3% was found for the best treatment indicating that the substrate does not contain phytotoxic elements.

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Evaluación de la co-digestión anaerobia de lodos de aguas residuales municipales con residuos de alimentos

Cited by 10 publications

References 20 publications

Optimizing Anaerobic Digestion at Ambient Temperatures: Energy Efficiency and Cost Reduction Potential in Panama

Optimizing Anaerobic Digestion at Ambient Temperatures: Energy Efficiency and Cost Reduction Potential in Panama

Valorización de propiedades fisicoquímicas de residuos sólidos orgánicos alimentarios para la elaboración de compostaje

Agricultural Use of Biosolids Generated in Wastewater Treatment of a Food Industry

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